<template>
  <Dialog :title="dialogTitle" v-model="dialogVisible" width="60%">
    <el-form
      ref="formRef"
      :model="formData"
      :rules="formRules"
      label-width="100px"
      v-loading="formLoading"
    >
      <el-form-item label="里程月份" prop="month">
        <el-col :span="8">
          <el-date-picker
            v-model="formData.month"
            type="month"
            placeholder="选择月份"
          />
        </el-col>
      </el-form-item>
      <el-form-item label="里程数" prop="mileage">
        <el-col :span="16">
        <el-input v-model="formData.mileage" placeholder="请输入里程数" />
        </el-col>
      </el-form-item>
    </el-form>
    <template #footer>
      <el-button @click="submitForm" type="primary" :disabled="formLoading">确 定</el-button>
      <el-button @click="dialogVisible = false">取 消</el-button>
    </template>
  </Dialog>
</template>
<script setup lang="ts">
import { VehicleMileageRecordApi, VehicleMileageRecordVO } from '@/api/oa/vehiclemileagerecord'
import { defineProps } from 'vue'
import { VehicleApi } from '@/api/oa/vehicle'

/** 车辆里程记录 表单 */
defineOptions({ name: 'VehicleMileageRecordForm' })

const { t } = useI18n() // 国际化
const message = useMessage() // 消息弹窗

const dialogVisible = ref(false) // 弹窗的是否展示
const dialogTitle = ref('') // 弹窗的标题
const formLoading = ref(false) // 表单的加载中：1）修改时的数据加载；2）提交的按钮禁用
const formType = ref('') // 表单的类型：create - 新增；update - 修改
const formData = ref({
  id: undefined,
  vehicleId: undefined,
  mileage: undefined,
  month: undefined
})
const formRules = reactive({
  mileage: [{ required: true, message: '里程数不能为空', trigger: 'blur' }],
  month: [{ required: true, message: '不能为空', trigger: 'blur' }]
})
const formRef = ref() // 表单 Ref
const props = defineProps({
  vehicleId: {
    type: [Number, String],
    required: true
  }
})

const vehicleIdRef = ref<string | undefined>(undefined)
const latestMileage = ref<number | null>(null) // 新增字段，保存当前车辆的最新里程
/**
 * 格式化日期为 YYYY-MM 格式（基于北京时间）
 * @param date - Date 对象或可解析为 Date 的字符串
 * @returns 格式化后的字符串
 */
function formatYearMonth(date: string | Date): string {
  const d = new Date(date)

  // 转换为北京时间
  const year = d.getFullYear()
  const month = String(d.getMonth() + 1).padStart(2, '0')

  return `${year}-${month}`
}

/** 打开弹窗 */
const open = async (type: string, id?: number) => {
  dialogVisible.value = true
  dialogTitle.value = t('action.' + type)
  formType.value = type
  resetForm()
  // 修改时，设置数据
  if (id) {
    formLoading.value = true
    try {
      formData.value = await VehicleMileageRecordApi.getVehicleMileageRecord(id)
    } finally {
      formLoading.value = false
    }

  }
  else {
    // 新增模式下，尝试填充车辆信息
    if (props.vehicleId) {
      vehicleIdRef.value = props.vehicleId
      // 获取最新的里程数
      try {
         latestMileage.value = await VehicleApi.getCurrentMileage(props.vehicleId)
        console.log ('最新里程数:', latestMileage.value)

      } catch (error) {
        message.error('获取最新里程失败')
      }
      }
    }
}
defineExpose({ open }) // 提供 open 方法，用于打开弹窗


/** 提交表单 */
const emit = defineEmits(['success']) // 定义 success 事件，用于操作成功后的回调
const submitForm = async () => {
  // 校验表单
  await formRef.value.validate()

  formData.value.vehicleId = vehicleIdRef.value

  // 检查里程数是否小于当前车辆的最新里程
  if (latestMileage.value !== null && Number(formData.value.mileage) < latestMileage.value) {
    message.error('新增里程数不能小于当前里程数')
    formLoading.value = false
    return
  }

  if (formData.value.month) {
    formData.value.month = formatYearMonth(formData.value.month)
  }
  // 提交请求
  formLoading.value = true
  try {
    const data = formData.value as unknown as VehicleMileageRecordVO
    if (formType.value === 'create') {
      await VehicleMileageRecordApi.createVehicleMileageRecord(data)
      message.success(t('common.createSuccess'))
    } else {
      await VehicleMileageRecordApi.updateVehicleMileageRecord(data)
      message.success(t('common.updateSuccess'))
    }
    dialogVisible.value = false
    // 发送操作成功的事件
    emit('success')
  } finally {
    formLoading.value = false
  }
}

/** 重置表单 */
const resetForm = () => {
  formData.value = {
    id: undefined,
    vehicleId: undefined,
    mileage: undefined,
    month: undefined
  }
  formRef.value?.resetFields()
}

</script>
